The terminals for the speakers are probably thinking the Onkyo for bell wires, because my 2x2x2,5mm² cable from Oehlbach did not fit into it ...! No matter, had 2x1,5mm² in the basement ...! Then a Kef Center, Front 2 Teufel Ultima 30 and 2 Devil M220 dipoles connected to the TX-SR313 ...! Now it is ...! I really have tried everything, but the sound was (exaggerated) as from NEM Kofferradio ... !!! Wondering where to be 100 watts per channel ...! Repacked and put it ...! Had him also check everything was okay ...! No comparison with the Denon AVR-1311 is then but already getting old ... !!! Also need not * * Subwoofer power guzzlers because the Teufel Ultima 30 bring the 30 mm² Bude tremble ...!